Why Hydrolyzed Collagen Matters

Hydrolyzed fish collagen is a highly bioavailable form of Type I collagen, the primary structural protein in skin, joints, bones, and connective tissue.* Through enzymatic hydrolysis, long collagen chains are broken into low-molecular-weight peptides (1–5 kDa) that dissolve easily, mix smoothly, and are efficiently absorbed by the body.* These peptides are naturally rich in hydroxyproline, an amino acid sequence unique to collagen that plays a key role in connective-tissue structure.* Once absorbed, these hydroxyproline-containing peptides act as bioactive signals, helping stimulate fibroblasts—the cells responsible for producing collagen, elastin, and hyaluronic acid.* This signaling effect is one of the primary reasons hydrolyzed collagen supports skin elasticity, joint comfort, and tissue resilience.* Collagen is the body’s most abundant protein, but natural production declines with age. Supplementing with hydrolyzed collagen provides the building blocks and biological cues needed to support healthy connective-tissue renewal.* In the Yellowday Collagen–Vitamins–Minerals blend, hydrolyzed fish collagen peptides are paired with hyaluronic acid, MSM, Vitamin C, a complete B-complex, myo-inositol, N-acetyl tyrosine, and essential minerals to support hydration, energy metabolism, antioxidant activity, and overall tissue vitality.*

Hydrolyzed Collagen’s Key Benefits

• Skin health – supports elasticity, hydration, and firmness through bioactive peptide signaling*
• Joint comfort – helps maintain cartilage integrity and connective-tissue resilience*
• Bone strength – provides amino acids that contribute to bone matrix formation*
• Hair & nails – supports healthy keratin structure*
• High bioavailability – low-molecular-weight peptides (1–5 kDa) are efficiently absorbed and utilized*
• Smooth Mixing – dissolves quickly with no gritty texture, supporting daily use and consistency*

Hydrolyzed fish collagen is included in Yellowday Collagen–Vitamins–Minerals to provide foundational protein support for skin, joints, and connective tissue. *

How Hydrolyzed Collagen Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals – provides structural protein support and bioactive peptides that help maintain healthy skin, joints, and connective tissue*
• Detox – supports tissue renewal by working alongside antioxidant and detoxsupportive nutrients such as Glutathione, NAC, Milk Thistle, Turmeric Extract, Burdock Root, Nicotinamide Riboside, and BioPerine®*
• Greens – plant antioxidants help protect collagen from oxidative stress*
• Hormonal Support – supports skin and joint health during hormonal shifts*
• Omega – essential fatty acids complement collagen by supporting skin barrier function and cellular fluidity*
• Sleep – provides amino acids to contribute to overnight tissue support and renewal*

Why Sodium Hyaluronate Matters

Sodium hyaluronate is the sodium salt form of hyaluronic acid (HA), a naturally occurring molecule found in skin, joints, and connective tissue. * Known for its remarkable ability to bind and retain water, sodium hyaluronate helps maintain hydration and cushioning in tissues throughout the body. * In the body, HA contributes to joint lubrication, skin elasticity, eye moisture, and the hydration of connective tissue. * Natural HA levels decline with age, which can influence skin smoothness, joint comfort, and overall tissue resilience. * Supplementing with sodium hyaluronate supports hydration, mobility, and skin suppleness as part of a holistic wellness routine. * In the Yellowday Collagen–Vitamins–Minerals blend, sodium hyaluronate supports hydration and structural balance—helping you stay comfortable, move with ease, and maintain a healthy glow from within. *

Why Sodium Hyaluronate

• Deep tissue hydration – attracts and retains water in skin and connective tissue for lasting moisture*
• Skin elasticity – supports smoothness and suppleness*
• Joint comfort – contributes to joint lubrication and flexibility*
• Eye health – helps maintain moisture in the eyes for comfort*
• Tissue repair – plays a role in connective tissue integrity and resilience*

How Sodium Hyaluronate Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals — works with collagen peptides to support skin firmness and elasticity*
• Detox – supports tissue hydration and renewal alongside Glutathione, NAC, Milk Thistle, Turmeric Extract, Burdock Root, Nicotinamide Riboside, and BioPerine®*
• Greens – combines with plant antioxidants to help protect skin and connective tissue from oxidative stress*
• Hormonal Support – helps counteract dryness and skin changes that may occur during hormonal transitions*
• Omega – enhances skin barrier function when paired with essential fatty acids*
• Sleep – supports overnight hydration and tissue renewal*

Why MSM Matters

Methylsulfonylmethane (MSM) is an organic sulfur compound found naturally in small amounts in fruits, vegetables, grains, and the human body. * Sulfur is a critical building block for collagen, keratin, and other structural proteins that help maintain joint flexibility, skin resilience, and connective tissue strength. * MSM is valued for its ability to support antioxidant defenses and maintain a healthy inflammatory balance, which contributes to joint comfort, exercise recovery, and tissue protection. * By supplying bioavailable sulfur, MSM helps maintain the integrity of cartilage, tendons, ligaments, and skin—making it a natural partner to collagen peptides in the Yellowday system. *

Why MSM

• Joint health – supports cartilage structure and mobility*
• Inflammatory balance helps maintain a healthy inflammatory response for comfort and flexibility*
• Collagen formation – provides sulfur needed for collagen and keratin synthesis*
• Exercise recovery – supports muscle and tissue recovery after physical activity*
• Skin & hair – contributes to healthy skin texture and strong hair through structural protein maintenance*

MSM is included in the Yellowday Collagen–Vitamins–Minerals blend to strengthen connective tissue, support comfortable movement, and help protect the body’s structural proteins from daily wear and tear. *

How MSM Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals – supplies sulfur for collagen cross-linking, enhancing strength and elasticity*
• Detox – supports glutathione related antioxidant pathways alongside Glutathione, NAC, Milk Thistle, Turmeric Extract, Burdock Root, Nicotinamide Riboside, and BioPerine®*
• Greens – works with plant antioxidants to help protect connective tissue from oxidative stress*
• Hormonal Support – helps maintain joint and skin comfort during hormonal transitions*
• Omega – combines with essential fatty acids to support joint lubrication and skin barrier function*

Why Vitamin C Matters

Vitamin C, also known as ascorbic acid, is an essential water-soluble nutrient that the body cannot produce on its own. * It plays a critical role in the synthesis of collagen—the structural protein that helps keep skin firm, joints flexible, and connective tissues strong. * As a potent antioxidant, vitamin C helps protect cells from oxidative stress caused by environmental factors and normal metabolic processes. * It also supports immune function and enhances the absorption of non-heme iron from plant foods. * In the Yellowday Collagen–Vitamins–Minerals blend, vitamin C supports collagen formation, antioxidant defense, and immune balance—helping to maintain resilience throughout the body. *

Why Vitamin C

• Collagen synthesis — essential cofactor for enzymes that build and stabilize collagen fibers*
• Antioxidant protection – helps neutralize free radicals to protect skin, joints, and connective tissue*
• Immune function – supports healthy immune cell activity*
• Tissue Support – contributes to normal tissue renewal and recovery*
• Iron absorption – enhances uptake of non-heme iron from plant-based foods*

How Vitamin C Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals — works with collagen peptides and MSM to support skin, joints, and connective tissue*
• Detox – supports antioxidant recycling by helping regenerate nutrients like vitamin E and glutathione alongside Glutathione, NAC, Milk Thistle, Turmeric Extract, Burdock Root, Nicotinamide Riboside, and BioPerine®*
• Greens – enhances iron absorption from plant-based greens*
• Hormonal Support – supports nutrientbased stress resilience and overall cellular balance*
• Omega – helps protect delicate fatty acids from oxidation*
• Sleep – supports overnight tissue renewal and recovery*

Why Vitamin B1 Matters

Vitamin B1, also known as thiamine, is an essential water-soluble nutrient that the body cannot produce on its own. * It plays a central role in converting carbohydrates into usable energy (ATP), fueling every cell in the body—especially those in the brain, nerves, and heart. * Thiamine also contributes to the proper function of the nervous system, supporting clear communication between nerves and muscles. * Adequate intake helps sustain mental focus, balanced mood, and cardiovascular efficiency. * In the Yellowday Collagen–Vitamins–Minerals blend, thiamine supports energy metabolism, nerve function, and heart health—helping the body’s electrical and muscular systems run smoothly. *

Why Vitamin B1

• Energy production – contributes to the conversion of carbohydrates into ATP for cellular energy*
• Nervous system health – supports nerve signal transmission and muscle coordination*
• Heart function – helps maintain normal cardiac muscle contraction and rhythm*
• Mood & cognition – supports mental clarity, focus, and emotional balance*
• Metabolic support – aids in glucose metabolism as part of overall energy balance*

How Vitamin B1 Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals – provides energy support needed for collagen synthesis and tissue renewal*
• Detox – supports nutrient processing pathways alongside Glutathione, NAC, Milk Thistle, Turmeric Extract, Burdock Root, Nicotinamide Riboside, and BioPerine®*
• Greens – enhances carbohydrate metabolism from plant-based foods*
• Hormonal Support – supports nervoussystem and stress response balance during hormonal transitions*
• Omega – helps maintain nerve membrane integrity for efficient signal transmission*

Why Vitamin B2 Matters

Vitamin B2, or riboflavin, is an essential water-soluble nutrient that serves as a building block for key coenzymes (FAD and FMN) involved in energy production, cellular growth, and the metabolism of fats, proteins, and carbohydrates. * Because the body stores very little riboflavin, a steady daily intake is necessary to keep energy systems running smoothly. * Riboflavin also contributes to antioxidant defense by helping regenerate other antioxidants such as glutathione and vitamin E.* It supports healthy skin, eyes, and mucous membranes, while also playing a role in iron metabolism and nervous system function. * In the Yellowday Collagen–Vitamins–Minerals blend, riboflavin supports energy metabolism and cellular protection, helping tissues maintain both the fuel and the defense they need to thrive. *

Why Vitamin B2

• Energy metabolism – contributes to the conversion of carbohydrates, fats, and proteins into usable energy (ATP)*
• Antioxidant regeneration – helps recycle glutathione and vitamin E for ongoing cellular protection*
• Skin, eye & tissue health – supports healthy skin, vision, and mucous membranes*
• Nervous system support – contributes to normal nerve function*
• Iron metabolism – assists in the conversion of dietary iron into usable forms*

How Vitamin B2 Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals – provides coenzyme activity needed for collagen cross-linking and tissue support*
• Detox – supports antioxidant regeneration that protects liver cells alongside Glutathione, NAC, Milk Thistle, Turmeric Extract, Burdock Root, Nicotinamide Riboside, and BioPerine®*
• Greens – enhances nutrient utilization from plant-based foods*
• Hormonal Support – supports adrenal and thyroidrelated energy balance during hormonal transitions*
• Omega – helps protect delicate fatty acids from oxidative stress*

Why Vitamin B3 Matters

Vitamin B3, also known as niacinamide (or nicotinamide), is an essential water-soluble nutrient that supports hundreds of enzymatic reactions in the body. * It is a key component of the coenzymes NAD⁺ and NADP⁺, which are necessary for energy production, antioxidant defense, and cellular processes that maintain tissue health. * Unlike nicotinic acid, niacinamide does not cause skin flushing, making it a preferred form for supplementation. * It plays a vital role in supporting skin barrier function, nerve health, and overall cellular resilience. * In the Yellowday Collagen–Vitamins–Minerals blend, niacinamide supports energy metabolism, skin health, and nervous system balance—helping tissues maintain both vitality and protection. *

Why Vitamin B3 (Niacinamide)

• Energy metabolism – contributes to the conversion of carbohydrates, fats, and proteins into usable energy (ATP) via NAD⁺/NADP⁺*
• Skin barrier support – helps maintain hydration, smoothness, and resilience against environmental stressors*
• Cellular protection – supports antioxidant defense and helps protect cells from oxidative stress*
• Nervous system health – contributes to normal nerve function and cognitive performance*
• Cardiovascular support – supports healthy circulation and vascular integrity*

How Vitamin B3 Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals – supports skin structure by fueling collagen-related enzymes and helping protect against oxidative stress*
• Detox – supports liver and cellular energy pathways alongside Glutathione, NAC, Milk Thistle, Turmeric Extract, Burdock Root, Nicotinamide Riboside, and BioPerine®*
• Greens – works with plant-based antioxidants to help protect cells from oxidative stress*
• Hormonal Support – supports adrenal and thyroid related energy balance during hormonal transitions*
• Omega – helps protect delicate fatty acids in cell membranes from oxidation*

Why Vitamin B6 Matters

Vitamin B6, typically included in supplements in the form of pyridoxine hydrochloride, is an essential water-soluble nutrient involved in more than 100 enzyme-driven reactions in the body. * It plays a central role in metabolizing amino acids, carbohydrates, and fats. * Vitamin B6 plays an essential role in the production of neurotransmitters, including serotonin, dopamine, and GABA—chemical messengers that influence mood, focus, and sleep. * In addition, it contributes to hemoglobin synthesis, supporting oxygen transport to tissues, and helps maintain healthy homocysteine metabolism, which is linked to cardiovascular wellness. * In the Yellowday Collagen–Vitamins–Minerals blend, pyridoxine HCl supports energy metabolism, neurotransmitter pathways, and red blood cell formation—helping energy, mood, and tissue processes work in harmony. *

Why Vitamin B6

• Amino acid metabolism – converts amino acids into usable forms for energy, repair, and neurotransmitter production*
• Neurotransmitter synthesis – supports production of serotonin, dopamine, and GABA for mood and cognitive health*
• Red blood cell formation – contributes to hemoglobin production for efficient oxygen transport*
• Cardiovascular support – helps maintain healthy homocysteine metabolism*
• Immune function – supports healthy immune cell activity*

How Vitamin B6 Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals – supports amino acid metabolism for collagen peptide utilization and tissue renewal*
• Detox – aids liver enzymes in processing amino acids and supporting natural detoxification*
• Greens – enhances nutrient metabolism from plant-based proteins and carbohydrates*
• Hormonal Support – supports energy metabolism that contributes to steady mood and overall endocrine resilience*
• Omega – helps protect nerve cell membranes and supports signal transmission*

Why Biotin Matters

Vitamin B7, more commonly known as biotin, is an essential water-soluble nutrient that functions as a coenzyme for enzymes involved in breaking down carbohydrates, fats, and proteins into usable energy.* It also plays a key role in the production of keratin—the structural protein that makes up hair, skin, and nails—helping maintain their strength and integrity when intake is adequate.* Biotin also supports healthy nervous system function and contributes to the regulation of genes. * It is important during periods of rapid growth and renewal, when the body’s demand for energy and structural proteins is higher.* In the Yellowday Collagen–Vitamins–Minerals blend, biotin supports energy metabolism and keratin production, helping tissues maintain both the building blocks and the energy needed for renewal. *

Why Vitamin B7 (Biotin)

• Energy production – contributes to the conversion of carbohydrates, fats, and proteins into ATP for cellular fuel*
• Keratin synthesis – supports healthy hair, skin, and nails by aiding keratin production*
• Nervous system health – helps maintain nerve function and cognitive performance*
• Gene regulation – assists in controlling the activity of specific genes*

How Biotin Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals – works with collagen peptides to support skin, hair, and nail strength*
• Detox – supports liver enzymes that metabolize fats and amino acids*
• Greens – enhances nutrient utilization from plant-based foods*
• Hormonal Support – supports adrenal and thyroid function for steady energy and mood*
• Omega – helps protect lipid-rich tissues like skin and nerve membranes*

Why Vitamin B9 Matters

Vitamin B9, in the form of Calcium L5Methyltetrahydrofolate (LMTHF), is the biologically active, methylated form of folate—the version the body can use directly without conversion.* This form is especially relevant for individuals who may have reduced ability to convert folic acid into active folate.* LMTHF is essential for DNA synthesis, cell division, and the production of healthy red blood cells.* It also plays a central role in the methylation cycle, a biochemical process that regulates gene expression, supports methylation pathways involved in detoxification, and contributes to neurotransmitter production.* In the Yellowday Collagen–Vitamins–Minerals blend, Calcium L5Methyltetrahydrofolate supports DNA synthesis, methylation, and red blood cell formation—helping cells maintain the resources they need for growth and function.*

Why Vitamin B9 (Calcium L-5-Methyltetrahydrofolate)

• DNA synthesis – supports healthy cell division and tissue growth*
• Methylation support – contributes to homocysteine metabolism and overall cardiovascular and neurological wellness*
• Neurotransmitter production – supports the production of serotonin, dopamine, and norepinephrine for mood and cognitive balance*
• Prenatal & growth support – contributes to healthy fetal development and maternal wellness during pregnancy*
• Red blood cell formation –supports hemoglobin production for oxygen transport*

How Vitamin B9 Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals – supports cell turnover and tissue renewal in skin, joints, and connective tissue*
• Detox – supports methylation pathways involved in natural detoxification*
• Greens – works with plant-based folates for optimal nutrient utilization*
• Hormonal Support – supports methylation and neurotransmitter pathways that contribute to mood and overall endocrine resilience*
• Omega – helps protect brain and nerve cell membranes while supporting cognitive health*

Why Vitamin B12 Matters

Vitamin B12, in the form of Methylcobalamin, is the biologically active, methylated form of B12 that the body can use directly—without conversion. * Supports the body’s natural process of making red blood cells, the maintenance of healthy nerve cells, and the synthesis of DNA, the genetic blueprint in every cell. * B12 also plays a critical role in the methylation cycle, working in conjunction with folate (B9) and B6 to support homocysteine metabolism, pathways involved in neurotransmitter synthesis, and overall cardiovascular and cognitive wellness. * Because B12 is found naturally only in animal-derived foods, supplementation can be especially important for vegetarians, vegans, older adults, and those with absorption challenges. * In the Yellowday Collagen–Vitamins–Minerals blend, Methylcobalamin supports red blood cell formation, nervous system function, and DNA synthesis, helping to sustain energy metabolism and long-term vitality. *

Why Vitamin B12 (Methyl cobalamin)

• Red blood cell formation – supports healthy oxygen transport and red blood cell production*
• Nervous system health – contributes to myelin sheath integrity for clear nerve signaling*
• DNA synthesis – essential for healthy cell division and genetic stability*
• Methylation support – works with folate and B6 to support homocysteine metabolism for heart and brain wellness*
• Energy metabolism – contributes to the conversion of food into ATP for sustained cellular energy*

How Vitamin B12 Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals – supports cell division and tissue renewal in skin, joints, and connective tissue*
• Detox – supports methylation pathways involved in natural detoxification*
• Greens – complements plant-based nutrients that may lack B12 naturally*
• Hormonal Support – supports methylation and one carbon pathways involved in neurotransmitter balance for mood and stress resilience*
• Omega – helps protect nerve cell membranes and supports cognitive health*

Why Magnesium Matters

Magnesium citrate is a highly bioavailable form of magnesium—bound to citric acid for improved absorption—that supports over 300 enzymatic reactions in the body. * It plays a central role in muscle contraction and relaxation, nerve signal transmission, energy metabolism, and bone mineralization. * Because magnesium is primarily stored in bones and muscles, low intake or poor absorption can affect cardiovascular rhythm, stress resilience, and overall energy balance. * Magnesium citrate’s gentle osmotic effect also supports healthy digestion and bowel regularity, making it a versatile nutrient for both structural and functional wellness. * In the Yellowday Collagen–Vitamins–Minerals blend, magnesium citrate supports muscle relaxation, nerve health, and energy metabolism, helping the body function smoothly—day and night.*

Why Magnesium Citrate

• Muscle & nerve support – contributes to smooth muscle contraction and normal nerve signaling*
• Energy production – assists in ATP synthesis for sustained cellular energy*
• Bone strength – works with calcium and vitamin D to support bone density*
• Heart health – helps maintain healthy blood pressure and rhythm*
• Digestive balance – supports bowel regularity through gentle osmotic activity*

How Magnesium Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals — supports protein synthesis and muscle function involved in connective tissue maintenance*
• Detox – supports enzymatic pathways involved in natural detoxification*
• Greens – complements plant-based minerals for electrolyte balance*
• Hormonal Support – supports energy metabolism and stressresponse pathways that contribute to steady mood and overall endocrine resilience*
• Omega – supports healthy nerve signaling alongside omega3 fatty acids that help protect nerve cell membranes*
• Sleep – promotes relaxation by supporting neurotransmitter activity, including GABA pathways*

Why Potassium Matters

Potassium citrate is a highly bioavailable form of potassium—bound to citric acid—that supports fluid balance, nerve signaling, and muscle function throughout the body. * As a key electrolyte, potassium works in tandem with sodium to regulate the sodium–potassium pump, a process that drives nutrient transport, waste removal, and cellular electrical activity. * Its citrate component provides an alkalizing effect, helping to maintain a healthy acid–base balance and supporting urinary pH. * This makes potassium citrate particularly valuable for hydration, cellular energy, and mineral balance. * In the Yellowday Collagen–Vitamins–Minerals blend, potassium citrate supports hydration, cardiovascular function, and cellular balance, helping every cell operate in a well-nourished environment. *

Why Potassium (Citrate)

• Electrolyte balance – helps maintain optimal fluid distribution inside and outside cells*
• Heart health – supports healthy blood pressure and steady cardiac rhythm*
• Muscle & nerve function – contributes to smooth muscle contraction and clear nerve signaling*
• Acid–base balance – supports healthy pH for kidney and bone function*
• Mineral Balance – helps reduce urinary acidity and supports normal mineral utilization*

How Potassium Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals – supports cellular hydration and electrolyte balance that aid nutrient delivery to connective tissues*
• Detox – supports acid–base balance involved in the processing of metabolic byproducts*
• Greens – complements plant-based minerals for full electrolyte coverage*
• Hormonal Support – supports fluid balance and nerve signaling that contribute to steady energy and stress resilience*
• Omega – supports electrical gradients that work alongside fatty acids to maintain healthy cellular function*
• Sleep – supports muscle relaxation and nighttime hydration balance*

Why Sea Salt Powder Matters

Sea salt powder is produced by evaporating seawater, leaving behind fine crystals rich in sodium chloride and trace minerals such as magnesium, calcium, and potassium. * Unlike heavily refined table salt, sea salt undergoes minimal processing, allowing it to retain these naturally occurring minerals, which contribute to its subtle flavor complexity and functional benefits. * In the body, sodium plays a crucial role in maintaining fluid balance, transmitting nerve signals, and supporting muscle contraction. * The trace minerals in sea salt, while present in small amounts, can complement overall mineral intake. * Sea salt powder’s fine texture makes it easy to blend evenly into powdered supplements, ensuring consistent flavor and electrolyte delivery without gritty residue. * In the Yellowday Collagen–Vitamins–Minerals blend, sea salt powder supports hydration, enhances flavor harmony, and contributes trace minerals for balanced wellness. *

Why Sea Salt Powder

• Electrolyte support – helps maintain sodium balance for hydration and nerve function*
• Muscle & nerve health – works with potassium and magnesium to support smooth muscle contraction and clear nerve signaling*
• Mineral diversity – provides trace minerals that complement a balanced diet*
• Flavor enhancement – improves palatability without excessive sodium load*
• Digestive support – contributes to healthy digestive function by supporting fluid balance*

How Sea Salt Powder Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals – enhances flavor and supports electrolyte balance that aids overall cellular hydration*
• Detox – supports fluid and acid–base balance alongside potassium citrate and magnesium citrate*
• Greens – complements plant-based minerals for a complete electrolyte profile*
• Hormonal Support – supports sodium balance that contributes to steady energy and stress resilience*
• Omega – supports hydration that works alongside fatty acids to maintain healthy cellular function*
• Sleep – supports nighttime hydration balance for muscle relaxation*

Why Selenium Matters

L-Selenomethionine is the organic, amino acid–bound form of selenium—the body’s most efficiently absorbed and retained form of this essential trace mineral. * Once absorbed, it can be stored in place of methionine within body proteins, creating a selenium reserve that can be drawn upon when needed. * Selenium is required to produce selenoproteins—a specialized group of enzymes that help protect cells from oxidative stress, regulate thyroid hormone metabolism, and support immune function. * These include glutathione peroxidases, which contribute to antioxidant defense, and iodothyronine deiodinases, which convert inactive thyroid hormone (T4) into its active form (T3). * In the Yellowday Collagen–Vitamins–Minerals blend, L-Selenomethionine supports cellular protection, thyroid function, and immune balance, helping to maintain vitality at the metabolic level. *

Why Selenium (L-Selenomethionine)

• Antioxidant support helps protect DNA, proteins, and cell membranes from oxidative stress*
• Thyroid health – supports hormone activation and helps protect the thyroid gland from oxidative stress*
• Immune function – contributes to healthy immune system activity*
• Reproductive health – supports sperm integrity and overall reproductive wellness through antioxidant activity*
• Nutrient storage – incorporated into body proteins for sustained selenium availability*

How Selenium Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals – supports antioxidant pathways that help protect connective tissues from oxidative stress*
• Detox – supports glutathionedependent antioxidant pathways involved in natural detoxification processes*
• Greens – complements plant antioxidants for broad-spectrum cellular support*
• Hormonal Support – supports thyroid hormone activation and antioxidant pathways that contribute to reproductive wellness*
• Omega – supports antioxidant enzymes that help protect polyunsaturated fatty acids in cell membranes*
• Sleep – supports nighttime recovery by contributing to antioxidant pathways involved in cellular protection*

Why Myo-Inositol Matters

Myo-inositol is a naturally occurring compound—sometimes referred to as “vitamin B8” (though it is not a true vitamin)—that functions as a cell-signaling molecule and plays a pivotal role in insulin pathways, neurotransmitter balance, and supports healthy hormone balance.* It is found in small amounts in foods such as citrus fruits, beans, grains, and nuts, and is also produced by the body.* Myo-inositol has been studied for its potential to support healthy ovarian function, contribute to insulin sensitivity, and promote emotional well-being. * It also supports metabolic health by aiding healthy blood sugar metabolism and may contribute to mood steadiness through its influence on serotonin, dopamine, and GABA pathways. * In the Yellowday Collagen–Vitamins–Minerals blend, myo-inositol serves as a hormonal supporter, metabolic balancer, and mind-body connector, bridging physical and emotional wellness.*

Why Myo-Inositol

• Hormonal Support – contributes to healthy ovarian function and endocrine balance*
• Metabolic health – supports insulin sensitivity and healthy blood sugar metabolism*
• Mood & cognition – supports neurotransmitter activity for emotional resilience and mental clarity*
• Reproductive health – contributes to healthy ovarian function and overall reproductive wellness*
• Cell signaling – facilitates communication between cells for optimal function*

How Myo-Inositol Works in the Yellowday Wellness System

• Collagen–Vitamins–Minerals – supports cellular communication and metabolic balance, complementing inositol’s signaling role*
• Detox – supports metabolic pathways involved in cellular balance alongside magnesium and B vitamins*
• Hormonal Support – partners with adaptogens and micronutrients to support healthy hormone balance*
• Omega – supports neurotransmitter signaling alongside fatty acids that help maintain brain cell membrane structure*
• Sleep – supports calm and nighttime steadiness through its role in neurotransmitter pathways*